just a note on those pamplets....oddly enough, petco around where i live has them, in a rack next to the tanks, a sheet for each type of fisht hey carry,usually front and back info, with what kind of suitable tankmates you could pick, ph, temp, BW/SW needs, etc, as well as a picture...and they also have sheets on breeding, tank cycling, and the nitrogen cycle.
It's just too bad that every time that I go to PetCo, one or more tanks is quarantined because of massive breakouts of Ich or velvet...it's like, they encourage you to buy because they offer info...yet can't seem to keep the tanks from getting wiped out...I swear, i saw the WORST infection of Ich I've EVER seen the other night on some Black Skirt Tetras....truly sad...
On the other hand, I've been working for a family run LFS for a while now, and I have to say that yeah, some people just don't want to hear about how it would be a bad idea to put a crawdad in with cories. They just don't care or don't get it, I'm not too sure. But you have people like that in any aspect, because at the music store i work at the rest of the time, people could care less about the design of the instrument they are getting, or that it's a piece of junk that will probably discourage their child from playing...they just want that instrument and they want it now...and money talks and walks, so you just kinda have to do it.
I've heard of fishstores denying people the fish they want out of concern for the fish, but I'm not %100 sure that is a good idea...the idea is to be a buisness.
Anyways, my reccomendation for a LFS would be a large amount of livestock, that is very diverse, a few "unique" specimens every week (to encourage frequent buyers to return), helpful handouts that can be taken home (cuz who can remember most that stuff anyways?), employees who want to help the customers more then clean the shelves, healthy (and corpse free) tanks, and an easy to navigate and explore layout.
Hope this helps....